
.middle1{
    margin: 0 auto;
    width: 70%;
    margin-top: 150px;
}
#middle1-title{
    font: 400 36px "微软雅黑";
}
.middle1-box {
    display: flex;
    justify-content: space-between;
    margin-top: 24px;
}

.middle1-box div{
    font: 400 24px "微软雅黑";
    width: 24%;
}

.middle1-box div img{
    margin-top: 18px;
    width: 100%;
}